RESEARCH PAPERS: Offshore Mechanics

Estimation of Drag and Inertia Coefficients From Random Wave Data

[+] Author and Article Information
M. Isaacson, J. Baldwin, C. Niwinski

Department of Civil Engineering, University of British Columbia, Vancouver, B. C., Canada

J. Offshore Mech. Arct. Eng 113(2), 128-136 (May 01, 1991) (9 pages) doi:10.1115/1.2919908 History: Received April 19, 1990; Revised August 07, 1990; Online June 12, 2008


A summary is given of available methods of estimating the drag and inertia coefficients used in the Morison equation from random wave and wave force data. The methods provide coefficients that are either constant or variable for a given wave record. Numerical random wave and wave force records have been generated and are used to provide a comparison of five different methods.

Copyright © 1991 by The American Society of Mechanical Engineers
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